Sorry, I searched as best I could to see if this was already addressed. I understand from an earlier thread that Raw is not the same as uncompressed video (i.e. via HDMI).

But I am wondering: Is there any difference between recording ProRes HQ internally on a BMPCC and taking the HDMI output from the BMPCC and recording ProRes HQ on a Hyperdeck Shuttle 2?

Just trying to understand the technology, specifically what happens between the sensor and HDMI output. I saw this topic referred to on another forum but the members here appear to have more in-depth technical knowledge and also appear to suffer fools with greater patience.

Steve Holmlund wrote:Sorry, I searched as best I could to see if this was already addressed. I understand from an earlier thread that Raw is not the same as uncompressed video (i.e. via HDMI).

But I am wondering: Is there any difference between recording ProRes HQ internally on a BMPCC and taking the HDMI output from the BMPCC and recording ProRes HQ on a Hyperdeck Shuttle 2?

Just trying to understand the technology, specifically what happens between the sensor and HDMI output. I saw this topic referred to on another forum but the members here appear to have more in-depth technical knowledge and also appear to suffer fools with greater patience.

Thanks.

The really quick and short answer is there shouldn't be any difference between the internal ProRes and the recorded via HDMI ProRes recorded by a shuttle. It's the same stream.

Howard Hughes wrote:Do you think they will make an external recorder that can record the RAW to a SSD or even this new SSHD Drives.

I think "they" won't make anything new, but wait for sdxc-uhs1-cards to get larger, faster & cheaper. Right now 64 gb is the largest card to record raw to; technically sdxc-uhs1 ends at 2TB.

Are you sure that BMPCC will support UHS-1 as it is a relatively new specification?? Even BMD has failed to clarify on this issue. At a time when we are witnessing the evolution of UHS-II, Its high time BMD sets the record straight on this.

satyablack wrote:Are you sure that BMPCC will support UHS-1 as it is a relatively new specification?? Even BMD has failed to clarify on this issue. At a time when we are witnessing the evolution of UHS-II, Its high time BMD sets the record straight on this.

All the approved cards are UHS-I. We're still waiting on confirmation if UHS-II will be supported.

Thanks for the quick responses. I thought on another thread someone was looking for DNxHD out of the Pocket and it appears you get this via HDMI with the HyperDeck Shuttle 2 (HDS2). Not an ideal solution obviously and perhaps there would be compromises compared to an internal recording? And I wonder how recording uncompressed out of the Pocket to an HDS2 will compare to ProRes HQ. It seems like uncompressed is "halfway" between RAW and ProRes HQ? I guess at the very least it lets you benchmark how good ProRes HQ is.

EOSHD had a nice article on the BMCC vs. HDMI out of a Nikon 5200. I think the camera folks don't give a lot of info on what comes out of the HDMI port. Supposedly the Nikon 5200 is "Clean HDMI" but is it 1080i, for example?

I looked at the SDI and HDMI specs but I'm not an engineer and can't tell if RAW output is theoretically possible over these interfaces.

In Camera you can either record the data after stage 1 (=> raw recording) or stage 3 (=> ProRes recording). At the HDMI port you can grab the data after stage 2; if you use an external ProResHQ recorder you should then get almost the same resultes as after stage 3; if you use an external DNxHD recorder you should get the same quality, but maybe a little different kind of compression aliasing; if you use an external "raw" recorder you _don't_ get the same kind of data as after stage 1 !